Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGxb2EV9Gm8kKCq+K9/3hsEhPSUfPGLUzzDPtqiKz8dGkqCc4mdtXJ1D3K1… (844 chars)"
  }
}